Police are reminding dog owners to take care when walking near farmland after two lambs were killed in a field in Matlock.
The lambs were grazing in farmland off Sydnope Hill, Two Dales, when they were attacked by the dog.
One was killed straight away, while the second had to be put down later.
The incident, which happened on May 6, has prompted police to remind dog owners to be cautious if their dogs are off the lead near livestock.
Farmers are lawfully permitted to shoot dogs found attacking or worrying livestock on their land. Anyone identified as being the owner of a dog worrying livestock can also face prosecution.
Police can also pursue dog control orders, which force owners to muzzle their dogs or keep them on a lead at all times in public.
For more information, visit www.derbyshire.police.uk.